Oil burner



W. E. HUENEFELD.

on BURNER.

APPLICATION FILED SEPT. 20, 191'9.

Patented Jan. 3, 1922.

OIL BURNER.

recarga, l

Specification of Letters Patent.

Patented J an. S, 1922.

Application inea september 2o, 1919. semi No. 325,166.'

To all whom it 'may concern:

Be it known that I, WALTER E. Huelva FELD, a citizen of the UnitedStates, residing at Cincinnati, Ohio, have invented a certain new anduseful Improvement in Oil Burners, of which the following is a-full,clear, and exact description, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, forming part of this specilication.

My Yinvention relates generally to oil burners and more particularly toa device in the nature of an adjustable stop for limiting the upwardmovement of the wick lifting mechanism of the oil burner, therebypreventing the wick from being turned too high.

The form of adjustable stop or wick limiting device herein illustratedand described is particularly designed for use on the wick lifting meansdisclosed in the application for United States Letters Patent filedApril 2, 1919, by Paul L. Dulaney on oil burners, Serial Number 286,931.

The principal objects of my invention l are, to provide a relativelysimple stop or lifting device which is capable of being easily andcheaply produced, said stop being readily adjustable upon the member towhich it is applied in order to permit it to be reset or adjusted as theupper end of the wick burns away and said stop being very effective inperforming its intended functions. Y

VVth the foregoing and other objects in view, my invention consists incertain novel features of construction and arrangement of parts,hereinafter more fully described and claimed, and illustrated in theaccompanying drawings, in which` Figure 1 is an elevational view of anoil burner with parts thereof in section and showing my improved sto orlimiting device positioned on a vertica ly moving member of the wickraising mechanism.

VFigure 2 is an 'enlarged vertical section taken approximately on theline 2-2 of Figure 1.

Figure 3 is an enlarged horizontal section taken approximately onV th-eline 3 3 of Figure 1.

Referring by numerals to the accompanying drawings, 10 designates theannular wick receptacle which receives thesupply of oil through a supplypipe 11 the latter being relatively fixed or stationary and positionedabove the wick receptacle is the usual combustion chamber 12 that issupported upon a suitable carrying member 13.

A tubular wick 1e isV arranged for verticalmovement within the annularreceptacle 10,said wick being supported by a suitable carrier 15, andthe latter being connected to a cross bar 16. This .cross bar isconnected to one of the legs "of a vertically movable rod 17, the otherleg of which extends downwardly past the supply pipe 11 and one edgethereof being provided with teeth 18 to form a rack that is engaged bythe teeth of a pinion 19. This pinion is provided with a'rotatablymounted operating handle 20 and as the latter is manipulated, pinion 19acts to move vertically disposed rod 17 and parts carried therebyupwardly or downwardly as the case may be.

All of the parts just described are disclosed in the above-mentionedDulaney application and form no part in my invention, although, asheretofore stated, my im proved stopor limiting device is particularlydesigned for use in connection with this form of wick raising andlowering means.

My improved stop consists of a loop 21, preferably formed of metal, andof such size as to enclose and project a slight olistance laterally fromone side of the toothed leg of the vertically moving wick raising rod17. The loop is preferably square or rectangular when viewed in plan andpassing through one end of said loop is a set screw 22, the inner end ofwhich is adapted to bear directly against the side face of rod 17.Obviously by tightening this set screw 22, the loop is locked to the rod17 and con sequently moves vertically therewith. By proper manipulationofset screw 22, the loop 21 is locked in adjusted position upon the rod17 so that when the wick is turned upward with its upper edge projectingthe proper distance above the face of the annular receptacle 1() the topof the stop will engage against the underside of supply pipe 11, asillustrated by dotted lines in Figure 2, and thus said device will actas a stop to limit the upward movement of the wick.

As the upper end of the wick burns away, the stop or limiting devicemust necessarily be adjusted downwardly upon the rod 17, therebycompensating for that portion of the wick that is consumed in service.Where the stop or limiting dev`cc is termedY of relatively thin metal itis desirable, though not essential7 that a bearing member 23 such as anut be secured to that portion of the stop through which the set screw22 passes7 said nut providing ample bearing for the threaded portion oi:the set screw.

A Wick lifting device of my improived construction is comparativelysimple, can be easily and quickly adjusted so as to limit the upwardmovement of the Wick and said device is very e'liicient in'use.

It Will be readily understood that minor changes in the size, form andconstruction of the various parts oi my improved device canvbe made andsubstituted for those herein shown and described, Without departing fromthe spirit of my invention they scope ot' which is set forth in theappended claims.

I claim:

l. In an oil burner, a tubular wick receptacle, an oil supply pipepositioned below and diametrically of said receptacle, a verticallysliding rack har positioned near the axis of said receptacle and formingpart or the Wick raising` and lowering means9 and a stop element clampedto said bar and eX- tending laterally therefrom to engage said oil pipe,as said bar moves relative thereto7 to limit the movement of said means.

2. In an oil burner, a vmain horizontal burnerV member, a Wickreceptacle above same7 a vertical rack bar, rectangular in crosssection, forming part of a Wick raising mechanism andV positionedadjacent said main burner member, a rectangular loop adapted to surroundsaid bar with one of the loop ends contacting With one side otl said harand with the opposite loop end spaced a Substantial'distance from saidbar1 and a screw-v threaded inthe loiverend or" Said loop and having itspoint engaging',` the opposite side of said bar, said loop and screwforming a quicklyv adjustable stop on said bar adapted to engage saidmain burner member to thereby limit the upward movement of the Wickraising mechanism.

In testimony whereof l hereunto alto; my signature this 12th day oraSeptember, 1919.

' VALTER E. HUENEFELD.

